Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

Risk factors to be assessed include maternal HIV-1 RNA levels at delivery, maternal syphilis and other infections, obstetrical factors such as duration of membrane rupture, and adherence to neonatal medication.

Time Frame

through age 3 months

Safety Issue

No

Population Description

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

All available demographic and clinical variables were tested for association with transmission rate. All variables that were significant at p ≤ 0.20 were included in the multivariable regression model. Variables that were not significant were then removed from the model. The backward elimination method was used to select the final model.